MAINTENANCE ALLOCATION CHART
The maintenance allocation chart identifies the maintenance
operations that must be performed.
It assigns each of those
operations to the lowest level of maintenance authorized to perform
the complete task, or any part of the task, in terms of availability
of time, tools, test and support equipment, skills and employment of
b. The Maintenance Allocation Chart (MAC) in Section II
designates overall responsibility for the performance of maintenance
functions for the Power Supplies PP-7292/USQ, PP-7292A/USQ,
PP-7294/USQ, PP-7294A/USQ, PP-7293/USQ, PP-7293A/UsQ.
Section III lists the special tools and test equipment
required for each maintenance function as referenced from Section II.
Section IV contains supplemental instructions on explanatory
notes for a particular maintenance function.
To determine the serviceability of an item by
comparing its physical, mechanical and/or electrical characteristics
with established standards through examination.
To verify serviceability and detect incipient failure
by measuring the mechanical or electrical characteristics of an item
and comparing those characteristics with prescribed standards.
Operations required periodically to keep an item in
proper operating condition; i.e., to clean (decontaminate), preserve,
drain, paint or replenish fuel, lubricants, hydraulic fluids, or
compressed air supplied.
d. Adjust. To maintain, within prescribed limits, by bringing
into proper or exact position, or by setting the operating
characteristics to specified parameters.
To adjust specified variable elements of an item to
e. A l i g n
bring about optimum or desired performance.
To determine and cause corrections to be made or
to be adjusted on instruments or test, measuring and diagnostic
equipments used in precision measurement. Consists of comparisons of
two instruments, one of which is a certified standard of known
accuracy; to detect and adjust any discrepancy in the accuracy of the
instrument being compared.